Here is the archive of all official releases of Impossible Bosses. we do not provide support for maps you haven't downloaded from the official download links so make sure you get your map files directly from this forums.

There are no supports from old versions. If you wish to watch an old replay then use Warcraft Version Switcher to switch to the right Warcraft III version and download the correct version which is assosiated with the replay. If you still can't watch the replay then it's probably due to the fact that the replay was saved on a map with a different file name or a different version beside the official version. We cannot provide you with correct map versions if you cannot find it yourself.